1 /* bfin-defs.h ADI Blackfin gas header file
3 Free Software Foundation, Inc.
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
29 #define CODE_FRAG_SIZE 4096 /* 1 page. */
32 /* Definition for all status bits. */
72 /* High-Nibble: group code, low nibble: register code. */
83 /* All registers above this value don't
84 belong to a usuable register group. */
85 #define T_NOGROUP 0xa0
88 #define F_REG_ALL 0x1000
89 #define F_REG_HIGH 0x2000 /* Half register: high half. */
91 enum machine_registers
93 REG_R0 = T_REG_R, REG_R1, REG_R2, REG_R3, REG_R4, REG_R5, REG_R6, REG_R7,
94 REG_P0 = T_REG_P, REG_P1, REG_P2, REG_P3, REG_P4, REG_P5, REG_SP, REG_FP,
95 REG_I0 = T_REG_I, REG_I1, REG_I2, REG_I3,
96 REG_M0 = T_REG_M, REG_M1, REG_M2, REG_M3,
97 REG_B0 = T_REG_B, REG_B1, REG_B2, REG_B3,
98 REG_L0 = T_REG_L, REG_L1, REG_L2, REG_L3,
99 REG_A0x = T_REG_A, REG_A0w, REG_A1x, REG_A1w,
102 REG_LC0 = 0x60, REG_LT0, REG_LB0, REG_LC1, REG_LT1, REG_LB1,
103 REG_CYCLES, REG_CYCLES2,
104 REG_USP = 0x70, REG_SEQSTAT, REG_SYSCFG,
105 REG_RETI, REG_RETX, REG_RETN, REG_RETE, REG_EMUDAT,
107 /* These don't have groups. */
108 REG_sftreset = T_NOGROUP, REG_omode, REG_excause, REG_emucause,
109 REG_idle_req, REG_hwerrcause,
110 REG_A0 = 0xc0, REG_A1, REG_CC,
111 /* Pseudo registers, used only for distinction from symbols. */
112 REG_RL0, REG_RL1, REG_RL2, REG_RL3,
113 REG_RL4, REG_RL5, REG_RL6, REG_RL7,
114 REG_RH0, REG_RH1, REG_RH2, REG_RH3,
115 REG_RH4, REG_RH5, REG_RH6, REG_RH7,
119 /* Status register flags. */
179 /* Register type checking macros. */
181 #define CODE_MASK 0x07
182 #define CLASS_MASK 0xf0
184 #define REG_SAME(a, b) ((a).regno == (b).regno)
185 #define REG_EQUAL(a, b) (((a).regno & CODE_MASK) == ((b).regno & CODE_MASK))
186 #define REG_CLASS(a) ((a.regno) & 0xf0)
187 #define IS_A1(a) ((a).regno == REG_A1)
188 #define IS_H(a) ((a).regno & F_REG_HIGH ? 1: 0)
189 #define IS_EVEN(r) (r.regno % 2 == 0)
190 #define IS_HCOMPL(a, b) (REG_EQUAL(a, b) && \
191 ((a).regno & F_REG_HIGH) != ((b).regno & F_REG_HIGH))
193 /* register type checking. */
194 #define _TYPECHECK(r, x) (((r).regno & CLASS_MASK) == T_REG_##x)
196 #define IS_DREG(r) _TYPECHECK(r, R)
197 #define IS_DREG_H(r) (_TYPECHECK(r, R) && IS_H(r))
198 #define IS_DREG_L(r) (_TYPECHECK(r, R) && !IS_H(r))
199 #define IS_PREG(r) _TYPECHECK(r, P)
200 #define IS_IREG(r) (((r).regno & 0xf4) == T_REG_I)
201 #define IS_MREG(r) (((r).regno & 0xf4) == T_REG_M)
202 #define IS_BREG(r) (((r).regno & 0xf4) == T_REG_B)
203 #define IS_LREG(r) (((r).regno & 0xf4) == T_REG_L)
204 #define IS_CREG(r) ((r).regno == REG_LC0 || (r).regno == REG_LC1)
205 #define IS_ALLREG(r) ((r).regno < T_NOGROUP)
207 /* Expression value macros. */
227 #define SYMBOL_T symbolS*
229 struct expression_cell
235 /* User Type Definitions. */
239 struct bfin_insn *next;
240 struct expression_cell *exp;
245 #define INSTR_T struct bfin_insn*
246 #define EXPR_T struct expression_cell*
248 typedef struct expr_node_struct Expr_Node;
250 extern INSTR_T gencode (unsigned long x);
251 extern INSTR_T conscode (INSTR_T head, INSTR_T tail);
252 extern INSTR_T conctcode (INSTR_T head, INSTR_T tail);
253 extern INSTR_T note_reloc
254 (INSTR_T code, Expr_Node *, int reloc,int pcrel);
255 extern INSTR_T note_reloc1
256 (INSTR_T code, const char * sym, int reloc, int pcrel);
257 extern INSTR_T note_reloc2
258 (INSTR_T code, const char *symbol, int reloc, int value, int pcrel);
260 /* Types of expressions. */
263 Expr_Node_Binop, /* Binary operator. */
264 Expr_Node_Unop, /* Unary operator. */
265 Expr_Node_Reloc, /* Symbol to be relocated. */
266 Expr_Node_GOT_Reloc, /* Symbol to be relocated using the GOT. */
267 Expr_Node_Constant /* Constant. */
270 /* Types of operators. */
280 Expr_Op_Type_BAND, /* Bitwise AND. */
281 Expr_Op_Type_BOR, /* Bitwise OR. */
282 Expr_Op_Type_BXOR, /* Bitwise exclusive OR. */
283 Expr_Op_Type_LAND, /* Logical AND. */
284 Expr_Op_Type_LOR, /* Logical OR. */
286 Expr_Op_Type_COMP /* Complement. */
289 /* The value that can be stored ... depends on type. */
292 const char *s_value; /* if relocation symbol, the text. */
293 int i_value; /* if constant, the value. */
294 Expr_Op_Type op_value; /* if operator, the value. */
297 /* The expression node. */
298 struct expr_node_struct
301 Expr_Node_Value value;
302 Expr_Node *Left_Child;
303 Expr_Node *Right_Child;
307 /* Operations on the expression node. */
308 Expr_Node *Expr_Node_Create (Expr_Node_Type type,
309 Expr_Node_Value value,
310 Expr_Node *Left_Child,
311 Expr_Node *Right_Child);
313 /* Generate the reloc structure as a series of instructions. */
314 INSTR_T Expr_Node_Gen_Reloc (Expr_Node *head, int parent_reloc);
316 #define MKREF(x) mkexpr (0,x)
317 #define ALLOCATE(x) malloc (x)
319 #define NULL_CODE ((INSTR_T) 0)
322 #define EXPR_VALUE(x) (((x)->type == Expr_Node_Constant) ? ((x)->value.i_value) : 0)
325 #define EXPR_SYMBOL(x) ((x)->symbol)
332 typedef struct _register
334 reg_t regno; /* Register ID as defined in machine_registers. */
339 typedef struct _macfunc
350 typedef struct _opt_mode
368 extern int debug_codeselection;
370 void error (char *format, ...);
371 void warn (char *format, ...);
372 int semantic_error (char *syntax);
373 void semantic_error_2 (char *syntax);
375 EXPR_T mkexpr (int, SYMBOL_T);
377 extern void bfin_equals (Expr_Node *sym);
378 /* Defined in bfin-lex.l. */
379 void set_start_state (void);
385 #endif /* BFIN_PARSE_H */